PART II 



ANNOTATED LIST 



1. Colymbus holbcelli Holbcell's Grebe. Rare 

 winter visitant, apparently included by Barnard and 

 Pennock upon personal observation. I have record 

 of a flock of six observed on Valley Forge dam, Feb. 

 10, 1903, and there are two recent records at Ken- 

 nett Square, Feb. 9, 1904, and Feb. 15, 1912, the 

 last a capture (Pennock, Cassinia, viii, 54; xvi, 44). 



2. Colymbus auritus Horned Grebe. Rather rare 

 transient visitant, though listed by all but Mont- 

 gomery. Mar. 29-Apr. 20. I have a female (No. 

 580, coll. F. L. B.) found dead under the telegraph 

 wires at Paoli, Apr. 20, 1896 (Wilson Bulletin, No. 

 8, 6). The additional records that have come to my 

 notice are: Westtown, Mar. 29, 1911, by G. H. 

 Hallett, and Apr. 5, 1913, by Emily M. Webster; 

 Kennett Square, Apr. 16, 1914, by C. A. Thomas 

 (Cass., xv, 53; xvii, 40; xviii, 50). There are no 

 spring dates. 



3. Podilymbus podiceps Pied-billed Grebe, "dab- 

 chick," "dipper," "hell diver," "little diver." Not 

 very common transient, most frequent in spring. 

 Apr. 7 (1911) -May 2 (1915) ; Ave. 4 years, Apr. 

 12. Two fall records are available both at Berwyn, 

 Sept. 25, 1902, and Aug. 27, 1913. In Highland 

 Twp. it is sometimes found in winter. A living 

 specimen was taken from a flock of five or six on 

 Buck run, in December, 1902 (Wilson MS.). 



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